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(a) Find the force needed to bring a 1000 kilogram car to rest from a speed of 95.0 km/h in a distance of 125 meter (a fairly typical distance for a nonpaid stop).
(b) Assume instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 meter. Find the force exerted on the car?
A 20.0 g bullet strikes a0.592 kg block attached to a fixedhorizontal spring whose spring constant is 6.69 103 N/m, What was the speed of the bullet before impact
A length of 20-gauge copper wire (of diameter 0.8118 mm) is formed into a circular loop with a radius of 25 cm. Find the average electrical power dissipated in the process
A single conservative force F(x) acts on a 1.1 kg particle that moves along an x axis. What is the maximum kinetic energy of the particle
The generator in a purely inductive AC circuit has an angular frequency of 120 pie rad/s. If change V =220. V and L =0.100 H, evaluate what is the rms current in the circuit
Two coils are wound around the same cylindricalform. When the current in the first coil is decreasing at a rate of-0.240 A/s, What is the mutual inductance of the pair of coils
An airplane needs to reach a velocity of 487 km/h to take off. On a 2000 m runway, what is the least acceleration necessary for the plane to take flight.
A projectile is fired with an inital speed ofvi=20m/s at an angle θ=30o with the horizontal. Find the horizontal component of the projectiles's velocity at the instant jus before it hits the ground. Find the vertical component of the projectiles's ve..
If the bunting support rope is at 30 degree to the vertical and its tension force is 400N, what is the vertical component of the tension, and what is the horizontal pull from the bunting
A loudspeaker on a homecoming float - mounted on a pole -- is stuck playing at an annoying 210 Hz tone, What is the intensity of the signal at this point, What is the power of the speaker
There are two pith balls that are suspended from a pendulum and repel each other, calculate the tension of the string and the mass of the balls
A banked circular highway curve is designed for traffic moving at 75 km/h. The radius of the curve is 153 meter. Find minimum coefficient of friction between tires and road
q1. a 28 kg loudspeaker is suspended 3.0 m below the ceiling by two cables that are each 64 degrees from vertical. what
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